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Nikon D7100 vs Sigma SD1

Portability
59
Imaging
65
Features
80
Overall
71
Nikon D7100 front
 
Sigma SD1 front
Portability
77
Imaging
55
Features
43
Overall
50

Nikon D7100 vs Sigma SD1 Key Specs

Nikon D7100
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 6400 (Boost to 25600)
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Nikon F Mount
  • 765g - 136 x 107 x 76mm
  • Revealed April 2013
  • Older Model is Nikon D7000
  • New Model is Nikon D7200
Sigma SD1
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 0 - 0
  • No Video
  • Sigma SA Mount
  • n/ag - 146 x 113 x 80mm
  • Released September 2010
  • Updated by Sigma SD1 Merrill
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Nikon D7100 vs Sigma SD1 Overview

Following is a extended review of the Nikon D7100 and Sigma SD1, both Advanced DSLR cameras by brands Nikon and Sigma. There exists a large gap among the sensor resolutions of the D7100 (24MP) and SD1 (15MP) but they use the same exact sensor sizing (APS-C).

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The D7100 was brought out 2 years after the SD1 which is a fairly serious difference as far as camera technology is concerned. Each of the cameras offer the identical body type (Mid-size SLR).

Before going straight into a detailed comparison, below is a simple overview of how the D7100 grades against the SD1 in the way of portability, imaging, features and an overall score.

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Reasons to pick Nikon D7100 over the Sigma SD1

 D7100 SD1 
ReleasedApril 2013September 2010More modern by 32 months
Display sizing3.2"3"Larger display (+0.2")
Display resolution1229k460kClearer display (+769k dot)

Reasons to pick Sigma SD1 over the Nikon D7100

 SD1 D7100 

Common features in the Nikon D7100 and Sigma SD1

 D7100 SD1 
Manually focus Very precise focusing
Display typeFixed Fixed Fixed display
Selfie screen Neither has selfie screen
Touch display Neither has Touch display

Nikon D7100 vs Sigma SD1 Physical Comparison

If you're looking to carry around your camera often, you're going to have to factor its weight and proportions. The Nikon D7100 has external measurements of 136mm x 107mm x 76mm (5.4" x 4.2" x 3.0") along with a weight of 765 grams (1.69 lbs) while the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") and a weight of n/a grams (0.00 lbs).

Check out the Nikon D7100 and Sigma SD1 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change depending on the lens you are using at that moment. Underneath is the front view measurement comparison of the D7100 against the SD1.

Nikon D7100 vs Sigma SD1 size comparison

Considering dimensions and weight, the portability grade of the D7100 and SD1 is 59 and 77 respectively.

Nikon D7100 vs Sigma SD1 top view buttons comparison

Nikon D7100 vs Sigma SD1 Sensor Comparison

Sometimes, it is very tough to visualise the difference in sensor sizes purely by checking out specifications. The picture here will help provide you a stronger sense of the sensor sizing in the D7100 and SD1.

To sum up, each of the cameras offer the same exact sensor sizing but not the same MP. You can expect to see the Nikon D7100 to produce greater detail having its extra 9MP. Greater resolution can also make it easier to crop photos a little more aggressively. The newer D7100 will have an advantage in sensor tech.

Nikon D7100 vs Sigma SD1 sensor size comparison

Nikon D7100 vs Sigma SD1 Screen and ViewFinder

Nikon D7100 vs Sigma SD1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Nikon D7100 as a Portrait photography camera
Sigma SD1 as a Portrait photography camera
79
focusing manually
MP count decent (24MP)
nice sensor size (APS-C)
offers face detection focus
supports RAW files
65
has manual focus
sensor resolution is decent (15 megapixels)
sensor size is good (APS-C)
saves RAW formats
no liveview feature
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Street Comparison

Nikon D7100 as a Street photography camera
Sigma SD1 as a Street photography camera
60
nice sensor size (APS-C)
supports RAW files
weather proofing
screen does not articulate
lack of image stabilization
62
sensor size is good (APS-C)
saves RAW formats
environment sealing
fixed screen
no image stabilization
maximum ISO low (0)
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Sports Comparison

Nikon D7100 as a Sports photography camera
Sigma SD1 as a Sports photography camera
70
maximum shutter speed is high (1/8,000 seconds)
MP count decent (24MP)
nice sensor size (APS-C)
offers tracking autofocus
weather proofing
supports phase detect auto focus
painfully slow continuous shooting (6.0 fps)
lack of image stabilization
56
sensor resolution is decent (15MP)
sensor size is good (APS-C)
environment sealing
sensor has phase detect auto focus
no liveview feature
slow frames per second (5.0 frames/s)
no image stabilization
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Travel Comparison

Travel photography with Nikon D7100
Travel photography with Sigma SD1
66
weather proofing
MP count decent (24MP)
has built in flash
does not feature selfie friendly screen
65
environment sealing
sensor resolution is decent (15MP)
has built in flash
lack of Time Lapse mode
screen is not selfie friendly
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Landscape Comparison

Nikon D7100 Landscape photography advice
Sigma SD1 Landscape photography advice
76
focusing manually
change lenses (Nikon F mount)
screen is a decent size (3.2")
MP count decent (24 megapixels)
nice sensor size (APS-C)
doesnt have anti aliasing filter
supports RAW files
weather proofing
has dual storage slots
lack of image stabilization
61
has manual focus
swap lenses (Sigma SA mount)
screen size is good (3 inches)
sensor resolution is decent (15MP)
sensor size is good (APS-C)
saves RAW formats
environment sealing
no liveview feature
no image stabilization
maximum ISO low (0)
lack of Time Lapse mode
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Vlogging Comparison

Nikon D7100 as a Vlogging camera
Sigma SD1 as a Vlogging camera
30
offers face detection focus
high quality video (1920 x 1080 pxls)
comes with external microphone jack
does not feature selfie friendly screen
lack of image stabilization
9
lack of video recording
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Nikon D7100 vs Sigma SD1 Specifications

Detailed spec comparison table for Nikon D7100 and Sigma SD1
 Nikon D7100Sigma SD1
General Information
Company Nikon Sigma
Model type Nikon D7100 Sigma SD1
Class Advanced DSLR Advanced DSLR
Revealed 2013-04-25 2010-09-21
Body design Mid-size SLR Mid-size SLR
Sensor Information
Chip - Dual True II
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 24 x 16mm
Sensor surface area 366.6mm² 384.0mm²
Sensor resolution 24 megapixel 15 megapixel
Anti alias filter
Aspect ratio 3:2 and 16:9 -
Highest resolution 6000 x 4000 4800 x 3200
Highest native ISO 6400 -
Highest boosted ISO 25600 -
Min native ISO 100 -
RAW files
Autofocusing
Manual focusing
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 51 11
Cross type focus points 15 2
Lens
Lens support Nikon F Sigma SA
Amount of lenses 309 76
Focal length multiplier 1.5 1.5
Screen
Range of screen Fixed Type Fixed Type
Screen diagonal 3.2" 3"
Screen resolution 1,229k dot 460k dot
Selfie friendly
Liveview
Touch operation
Screen technology Wide Viewing Angle TFT-LCD monitor -
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.63x 0.64x
Features
Slowest shutter speed 30 seconds 15 seconds
Maximum shutter speed 1/8000 seconds 1/2000 seconds
Continuous shooting speed 6.0 frames per sec 5.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Inbuilt flash
Flash distance 12.00 m (at ISO 100) -
Flash modes Auto, On, Off, Red-eye, Slow sync, Rear curtain -
Hot shoe
AE bracketing
White balance bracketing
Maximum flash sync 1/250 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60, 50, 25, 24 fps), 1280 x 720 (60, 50 fps), 640 x 424 (30, 24 fps) -
Highest video resolution 1920x1080 None
Video file format MPEG-4, H.264 -
Mic jack
Headphone jack
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 765 grams (1.69 lb) -
Dimensions 136 x 107 x 76mm (5.4" x 4.2" x 3.0") 146 x 113 x 80mm (5.7" x 4.4" x 3.1")
DXO scores
DXO All around rating 83 not tested
DXO Color Depth rating 24.2 not tested
DXO Dynamic range rating 13.7 not tested
DXO Low light rating 1256 not tested
Other
Battery life 950 images -
Style of battery Battery Pack -
Battery ID EN-EL15 -
Self timer Yes (2 or 10 seconds) Yes
Time lapse recording
Storage media SD/SDHC/SDXC x 2 slots Compact Flash (Type I, UDMA compatible)
Storage slots 2 1
Price at launch $800 $2,339